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Design of semi-algebraic low-density parity-check (SA-LDPC) codes for multilevel coded modulation
Proceedings of the 8th International Scientific and Practical Conference of Students, Post-graduates and Young Scientists. Modern Technique and Technologies. MTT'2002 (Cat. No.02EX550), 2004Semialgebraic low-density parity-check (SA-LDPC) codes are proposed for the multilevel coded modulation system. We optimize code parameters of LDPC codes according to the rate of each level by Gaussian approximation. Iterative multistage decoding (IMSD) scheme is adopted to get the significant improvement.
null Yu Yi +2 more
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Effects of 2-D interleaving and Low Density Parity Check (LDPC) Codes on Burst Errors
Optical Data Storage, 2007We highlight the importance of interleaver in holographic data storage (HDS) systems corrupted by burst errors. We use the Gilbert-Elliott channel model to generate pages with burst errors and investigate a toroidal interleaving scheme.
Lakshmi D. Ramamoorthy +1 more
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Modified Iterative Two-Stage Hybrid Decoding Algorithm for Low-Density Parity-Check (LDPC) Codes
VTC Spring 2009 - IEEE 69th Vehicular Technology Conference, 2009This paper considers a modified iterative version of the two-stage hybrid algorithm for decoding low-density parity- check (LDPC) codes. The hybrid-decision scheme is a decoding scheme used that combines two iterative decoding algorithms for decoding LDPC codes. This scheme is suitable for many applications such as audio and video transmission that are
Hany R. Zeidan, Maha M. Elsabrouty
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2019 5th International Conference on Transportation Information and Safety (ICTIS), 2019
The maritime navigation digital system proposed in this paper uses the Orthogonal Frequency Division Multiplexing (OFDM) modulation method instead of the original Frequency Shift Keying (FSK) modulation method to increase the capability of the maritime security department to broadcast information by 150 times.
Xiang Wang, Jingxian Liu, Zhao Liu
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The maritime navigation digital system proposed in this paper uses the Orthogonal Frequency Division Multiplexing (OFDM) modulation method instead of the original Frequency Shift Keying (FSK) modulation method to increase the capability of the maritime security department to broadcast information by 150 times.
Xiang Wang, Jingxian Liu, Zhao Liu
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Robust Wavelet-Based Information Hiding through Low-Density Parity-Check (LDPC) Codes
2004In this paper, in order to mitigate the channel conditions and improve the quality of the watermark, we proposed the application of LDPC codes on implementing a fairly robust image watermarking system. The implemented watermarking system operates in the spectrum domain where a subset of the discrete wavelet transform (DWT) coefficients is modified by ...
Yu Yi +3 more
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On implementation of min-sum algorithm for decoding low-density parity-check (LDPC) codes
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE, 2004This paper is concerned with the implementation issues of the so-called min-sum algorithm (also referred to as max-sum or max-product) for the decoding of low-density parity-check (LDPC) codes. The effects of clipping threshold and the number of quantization bits on the performance of the min-sum algorithm at short and intermediate block lengths are ...
F. Zarkeshvari, A.H. Banihashemi
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Reconfigurable Low Density Parity Check (LDPC) Code Interleaving for SIO and MIMO OFDM Systems
2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, 2006This contribution1 derives an algorithm for optimizing the mapping of irregular and systematic Low Density Parity Check (LDPC) code word bits onto Orthogonal Frequency Division Multiplexing (OFDM) carriers in the context of a frequency selective fading channel in both, a Single-Transmit Single-Receive (SISO channel) and Multiple-Transmit Multiple ...
Markus Muck +2 more
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Bootstrapped Low Complexity Iterative Decoding Algorithm for Low Density Parity Check (LDPC) Codes
2010RRWBF (Reliability ratio based weighted bit-flipping) algorithm is one of the best hard decision decoding algorithms in performance. Recently several modifications are done to this technique either to improve performance or to lower the complexity.
Albashir Mohamed +2 more
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IEEE Journal of Solid-State Circuits, 2006
S. Hemati, A. Banihashemi, C. Plett
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S. Hemati, A. Banihashemi, C. Plett
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